Safety signaling device for automobiles



Oct. 31, 1939. w. o. HEBLER SAFETY SIGNALING DEVICE FOR AUTOMOBILES Filed Nov. 2, 1937 INVENTOR )[Qwfl BY I ,%6@/40w ATTORNEY Patented I i i h I r i I I I UNITED STATES, PATENT 4 OFFICE SAFETY SIGNALING DEVICE FOR AUTOMOBILES William 0. Hebler, Westfield, N. J.

Application November 2, 1937, Serial No. 172,319 1 Claim. (Cl. 200-59) My invention relates to safety signaling devices car releases the accelerator pedal pressure, he for automobiles; and more particularly toa device could without difliculty apply his foot brakes or which can be incorporated as a safety accessory other braking means at almost thesame instant on vehicles propelled by internal combustion that the driver of the first car accomplishes this 5 engines. Increased speed of vehicles and the action.

resultant increased efllciency of brakes compels Simplicity is the key-note of the entire inventhe use of more up-to-date and reliable rear light tion, viz., ease of installation, utilization of present signaling devices. wiring on the automotive yehicle, no necessity of At present, signals by means of a "stop light, added equipment other than the switch mechaare given to the driver following a vehicle, said nism; and above all, contacts which are normally 10 signal being transmitted by a switch working in open to close, which provides a safety factor from harmony with a foot brake pedal. an electrical contacting stand-point which is far v Other signal light arrangements have appeared more efiicient than any system utilizing a circuit from time to time whereby a slow down" signal whereby contacts are normally closed to open light appears on deceleration of an engine and and dependent upon an auxiliary contacting cir- 15 goes out the instant the foot brake is applied. euit.

These lighting and signaling arrangements are It is the object of my invention to provide a complicated and they are not fool-proof in that switch which can be easily mounted on an act r operation is d p nd t on ach th If, celerator pedal rod, utilizing preferably the floor q s e ee. the fi a ent of the slow down"sigboard of the automotive vehicle or any other 20 nal burns out, then the complete circuit cannot existing stop" to actuate said switch the inbe established when the foot brake light or stop stant accelerator pedal pressure is released. light is applied, thereby rendering the complete It is a further object of the invention to comlighting system useless or inoperable. The same blue the wiring of said switch, having normally 2 holds true if, for some reason, the loot brake light open contacts, with an accelerator pedal, through is not contacting properly; the circuit cannot an ignition switch, on to the battery and lights be established through the slow-down" signal used for giving the warning signal. light. It is a further object of the invention to pro- My aim is to provide a simple contact switch advide a signaling device for an automobile which justably mounted on an accelerator rod, the conis controlled solely by the action of the 9.0- 30 tacts in said switch always being normally open. celerator, that is, immediately upon the removal The contacts can be closed only when pressure of the foot from the accelerator pedal the signal is applied against the contacts by means of a is placed in operation.

pusher rod or similar toggle device. The instant A further object is the provision of a stop sigthis toggle device comes into contact with a stop naling device for an automobile which includes 5 and the instant the accelerator pedal pressure is electrical contact members mounted on the acreleased, the contacts are closed. celerator rod of the automobile so that certain This device can be simply and easily installed movements of the accelerator rod will cause on any existing motor vehicle accelerator rod and closing of the contacts and actuation of a signal.

simply by means of two wires connected into the These and other advantageous objects, which existing lighting circuit 80 that t ev Present twill later appear, are accomplished by the simple ing equipment can be used as a signaling device. and practical construction and arrangements of To more fully appreciate the value of this sigparts, hereinafter described and exhibited in the naling device, consider, for example, a car travelaccompanying drawing, forming part hereof, and

ling at the rate of fifty miles per hour which in which: 5 suddenly receives an impulse from the driver to Fig- 1 is a Perspective View f h vic Sh wstop by means of application of the braking sysing the device secured to the accelerator rod of tem. If a car is following in the rear, the driver an automobile, and, of this car has his foot on the accelerator. The Figs. 2 and 3 are respectively, side elevational amount of time lag between the time the operator views of the device with the cover removed, show- 50 of the first car applies the brake and the time ing the contact members in Fig. 2 in engagement the operator of the second car receives this sigwith each other, and showing the contact memnal is usually too long, If, on the other hand, bers in Fig. 3 normally open or held from engagethe driver of the second car would receive a ment with each other.

warning signal the instant the driver of the first Referring to the drawing. in Fig. 1 is shown g The link 2 is connected to an arm 4 fixed to a shaft 5, which'has also fixed thereto a downwardly extending arm 6, pivotally connected to an accelerator rod 1. The above structure is more or less conventional in accelerators commonly used on automobiles.

Secured to the accelerator rod by bolts and nuts is a casing formed from two blocks of insulating material 8, which are provided with grooves near the bottom thereof through which slides a plunger 9, the latter being provided with a notch I0 in which rests the end of a leaf spring contact member H adapted to engage an arcuate spring contact member l2, to make electrical circuit through a stop light l3. The contact members II and I: are normally held from engagement by the action of spring I I as shown in Fig. 3. This action takes place when the pedal I is depressed to move the accelerator rod 1 forwardly.

In operation, when pressure is relieved from the accelerator pedal, the accelerator rod 1 will be retracted which causes plunger 9 to engage the board 3. This action moves the plunger forwardly to cause engagement of the contact members H and I2 as shown in Fig. 2, which closes an electrical circuit through the stop light l3 to indicate immediately to a following automobile that deceleration is taking place. The contact members H and [2 are connected in the electrical circuit through the stop lights to ground and through the battery to ground, as shown in Fig. 1.

The spring contact members II and I2, each I have one end thereof tightly fitted in slots in and the accelerator pedal is in the raised position the stop light will be actuated. This serves as means also to indicate when the ignition switch has been left on even when the automobile is standing still.

From the above description it will be seen that there has been provided a simple device which can be readily attached to the accelerator rod of an automobile for indicating immediately deceleration of the automobile, so that drivers of vehicles behind the automobile will be informed in sufficient time to regulate the speeds of their vehicles. By means of this device a great number of rear end collisions and serious accidents will be prevented.

The device is of simple structure as is shown by the drawing, and can be conveniently and readily marketed as an accessory, requiring no material alteration of the automobile for installation.

The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which, obviously, embodiments may be constructed including many modifications, without departing from the, spirit and scope of the invention herein denoted and set forth in the appended claim.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

In combination with the accelerator of an automobile having a floor board, said accelerator having a foot pedal on the floor board, and an accelerator rod adapted to be moved longitudinally by the pedal, a casing formed from two blocks of insulating material clamped about the accelerator rod and having a groove, a pair of resilient contact members mounted in the casing, said contact members being normally heldfrom engagement, a plunger slidable in said groove and adapted to engage one of said contact members to move it into engagement with the other contact member when the accelerator rod is retracted and the plunger engages the floor board.

WILLIAM O. HEBLER. 

